Q: How is the number 27,026,843 written in Scientific Notation?
A: 2.7026843 x 107
The purpose of scientific notation is for scientists to write very large, or very small, numbers with ease.
Calculating scientific notation for a positive integer is simple, as it always follows this notation:
a x 10b
Follow the steps below to see how 27,026,843 is written in scientific notation.
To find a, take the number and move a decimal place to the right one position.
Now, to find b, count how many places to the right of the decimal.
New Number: | 2 | . | 7 | 0 | 2 | 6 | 8 | 4 | 3 |
Decimal Count: | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
There are 7 places to the right of the decimal place.
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10b
a = 2.7026843
b = 7
Now the whole thing:
2.7026843 x 107
Check your work:
107 = 10,000,000 x 2.7026843 = 27,026,843
27,026,841 | 27,026,842 | 27,026,844 | 27,026,845 |
2.7026841 x 107 | 2.7026842 x 107 | 2.7026844 x 107 | 2.7026845 x 107 |